RHSA-2020:1287 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 3.11.200 is now available with
updates to packages and images that fix several bugs.

Red Hat Product Security has rated this update as having a security impact
of Critical. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

Description

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.

Security Fix(es):

• haproxy: malformed HTTP/2 requests can lead to out-of-bounds writes (CVE-2020-11100)
• haproxy: HTTP request smuggling issue with transfer-encoding header containing an obfuscated "chunked" value (CVE-2019-18277)
• haproxy: HTTP/2 implementation vulnerable to intermediary encapsulation attacks (CVE-2019-19330)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s)
listed in the References section.

Solution

Before applying this update, ensure all previously released errata relevant
to your system is applied.

See the following documentation, which will be updated shortly for release
3.11.200, for important instructions on how to upgrade your cluster and fully
apply this asynchronous errata update:

https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258.

Affected Products

• Red Hat OpenShift Container Platform 3.11 x86_64
• Red Hat OpenShift Container Platform for Power 3.11 ppc64le

Fixes

• BZ - 1759697 - CVE-2019-18277 haproxy: HTTP request smuggling issue with transfer-encoding header containing an obfuscated "chunked" value
• BZ - 1777584 - CVE-2019-19330 haproxy: HTTP/2 implementation vulnerable to intermediary encapsulation attacks
• BZ - 1819111 - CVE-2020-11100 haproxy: malformed HTTP/2 requests can lead to out-of-bounds writes

CVEs

• CVE-2019-18277
• CVE-2019-19330
• CVE-2020-11100

References

• https://access.redhat.com/security/updates/classification/#critical